advanced-patterns

To refactor a service for SOLID and 12-Factor compliance, apply maintainability rules and operational discipline via environment configuration and stateless processes. This skill provides decision trees and anti-pattern avoidance guidance to achieve production-grade operability.

Implementing circuit breakers for external calls prevents cascading failures by stopping traffic to unhealthy services. This skill guides you through resilience patterns including retries with backoff, jitter, and graceful degradation to ensure system reliability under failure conditions.

Using feature flags for safe rollouts involves toggling functionality with an expiry and cleanup policy to prevent dead code accumulation. This skill supports progressive enhancement workflows by providing structured verification checklists for review gates and evidence-based completion.

Yes, defining measurable performance budgets is a core capability of this architecture approach. It integrates performance engineering rules into system design tasks, ensuring applications remain fast under real-world load rather than just functioning on the happy path.

You need an architecture review using resilient patterns when debugging cascading failures or planning implementation for high-load systems. This skill supplies end-to-end verification checklists and concrete pattern guidance to satisfy operational excellence requirements during code review.